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Finding the Fourth Proportional to 525,663.48, 725,415.88 and 283,946.04

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Solution

The fourth proportional to 525,663.48, 725,415.88 and 283,946.04 is: 391,845.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,663.48 : 725,415.88 = 283,946.04 : x
  2. Step 2: Convert to fraction form
    525,663.48/725,415.88 = 283,946.04/x
  3. Step 3: Cross multiply
    525,663.48x = 725,415.88 × 283,946.04
  4. Step 4: Simplify right side
    525,663.48x = 205,978,966,479.12
  5. Step 5: Solve for x
    x = 205,978,966,479.12/525,663.48
  6. Step 6: Final answer
    x = 391,845.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.